Dokumente Human- und Zahnmedizin nach Gutachter "Bürgers, Ralf Prof. Dr."
Anzeige 1-19 von 19
-
In-vitro-Untersuchung zur mikrobiellen Adhäsion von Streptococcus mutans und Candida albicans auf verschiedenen Schienenmaterialien
(2023-10-06)Aim: The aim of the present in vitro study was to investigate the effect of different manufacturing processes of oral splint resins on the microbial adhesion of Streptococcus mutans and Candida albicans. Materials/Methods: ... -
Sauberkeit von Milchzahnwurzelkanälen nach Präparation mit unterschiedlichen Nickel-Titan-Systemen - Eine REM-Studie
(2023-02-23)Introduction: In the present in-vitro study the cleaning efficacy of two rotary Ni-Ti preparation systems was examined on the root canal walls of primary molars. The aim was to compare the different rotary systems with the ... -
Prävalenz von Allgemeinerkrankungen bei diagnostizierten Craniomandibulären Dysfunktionen – eine Fall-Kontroll-Studie
(2023-02-13)Symptoms of pain-associated temporomandibular disorders (TMD) are relevant in clinical practice as they affect 2,7 – 10 % of the population. Based on the biophychosocial model, the etiology is accepted as multifactorial ... -
Eine vergleichende In-Vitro-Studie zur Monomerfreisetzung aus Bisphenol-A- freien und konventionellen provisorischen Kronen- und Brückenmaterialien
(2022-12-07)This study aimed to investigate the release of common monomers from two conventional and two bisphenol A (BPA)-free temporary crown and bridge materials. Cylindrical samples of all materials were prepared (N = 90; five ... -
Vergleich der SBA- und VSA-Frageformate in der zahnmedizinischen Lehre hinsichtlich des Schweregrades, der Trennschärfe und deren Akzeptanz
(2022-08-25)Single-Best-Answer (SBA) items are currently considered the most widely used assessment tool in medical teaching. However, the format is subject to criticism for encouraging superficial learning behaviour and presenting ... -
Tageszeitabhängige Abweichungen der statischen und dynamischen Okklusion
(2021-04-20)Introduction. Occlusion, i.e. the sum of contacts between teeth of the maxilla and mandible, plays a decisive role in the pathogenesis of temporomandibular disorders (tmd) and in restorative therapy. Static and dynamic ... -
Wirkung physiko-chemischer Oberflächencharakteristika auf Zytotoxizität verschiedener dentaler Komposite
(2019-05-10)Objective: The present in vitro study investigated the effects of different roughnesses and different chemical compositions of composites on L929 mouse fibroblasts and human gingivae fibroblasts (GF1). Material & Method: ... -
Evaluierung bestehender Prüfungsmodalitäten in der Zahnärztlichen Vorprüfung und Implementierung neuer Prüfungsstrukturen
(2019-04-01)Background: the curriculum of dental education comprises several practical examinations, which are commonly assessed by using the so called ‚glance-and-grade‘ method. Without referring to specified criteria, valid check ... -
Antimikrobielle Beschichtung kieferorthopädischer Ligaturenringe mit Silber und Bismut
(2019-03-15)AIM The aim of the present in vitro study was to evaluate the anti-adherence and bactericidal activity of silver and bismuth coatings on orthodontic elastomeric ligatures against streptococcus mutans. MATERIALS/METHODS ... -
In-vitro-Studie zur Milchzahnwurzelkanalpräparation mit unterschiedlichen Nickel-Titan-Systemen
(2018-11-05)The aim of this study was to evaluate and compare the shaping ability of the vibrating Self-Adjusting File and the rotary Nickel-Titanium file Mtwo in primary molars using microcomputed-tomography. Additionally the ... -
In-vitro-Untersuchung zur initialen Biofilmbildung auf dentalen Kompositmaterialien
(2018-10-10)Objective: The aim of the present in vitro study was to investigate the effects of minimal differences in the composition of composite filling materials, i.e. different color mixtures, on the initial bacterial colonizati ... -
In-vitro-Untersuchung der antimikrobiellen und zytotoxischen Eigenschaften eines kupferhaltigen Zinkoxidphosphatzementes
(2017-11-10)AIM The aim of this in vitro study was to evaluate the biocompatibility and the antimicrobial effect of a copper-loaded zinc phosphate cement in comparison to a conventional unloaded reference cement. MATERIALS/METHODS Two ... -
Einfluss von Zungenreinigern vor einer antibakteriellen Therapie bei Multiband-Patienten auf die Rekolonisationszeit von Mutans-Streptokokken
(2017-08-11)Aim of the study: The aim of this in vivo study was to investigate the influence of tongue cleaning to the recolonization of Streptococcus mutans after a professional tooth cleaning and EC40® varnish application in patients ... -
Antibakterielle Wirksamkeit der photodynamischen Therapie bei verschiedenen Insertionstiefen einer LED-Lichtquelle anhand eines Enterococcus faecalis-Biofilm-Modells
(2017-08-08)OBJECTIVE: The failure of root canal treatments are often associated with the extremely resistant bacterium Enterococcus faecalis (E. faecalis). The aim of the present study was to investigate the PDT for the germ reduction ... -
In-vitro-Untersuchung zur Zytotoxizität kieferorthopädischer Kunststoffe
(2017-07-20)The aim of this study was to evaluate and to compare cytotoxicity and roughness of the autopolymerized orthodontic acrylic resin Weitur® and the photopolymerized Orthocryl® LC. Also possible relationships between cytotoxicity ... -
In-vitro-Analyse der antimikrobiellen Effektivität von Octenidol, Natriumhypochlorit und Chlorhexidin gegen Enterococcus faecalis anhand eines intrakanalären Biofilm-Modells
(2016-02-16)OBJECTIVE: The failure of primary root canal treatments is mostly due to persisting bacteria. These are mainly Enterococcus faecalis (E. faecalis). The objective of the study was the analysis of the antimicrobial ... -
Mikrobiologische Diagnostik bei periimplantären Erkrankungen – ein Vergleich von PCR und Real-time PCR
(2015-04-17)With the increasing number of dental implants, peri-implant diseases are coming to the fore. By the introduction of commercial microbiological testing in periodontal di-seases the expectation of a diagnostic benefit was ... -
Die Erfolgsquote orthograder endodontischer Revisionsbehandlungen nach nicht erfolgreicher Wurzelspitzenresektion
(2014-09-12)The purpose of this study was to evaluate the outcome of orthograde retreatment of apicected teeth with persisting apical periodontitis. Fifty-nine teeth surgically treated teeth were nonsurgically retreated and were ... -
Vergleichende In-vitro-Studie zur maschinellen Wurzelkanalaufbereitung mit dem BioRaCe-System und dem Self-Adjusting-File-System
(2013-10-18)Zwischen den beiden Versuchsgruppen fanden sich keine signifikanten Unterschiede bezüglich der Reinigungswirkung (p < 0,05, Mann-Whitney U). Sie war jedoch innerhalb der beiden Systeme koronal signifikant (p > 0,05) besser ...